nav.nav{
    margin-bottom: 2px;
    position: relative;
    height: 88px;
    border-bottom:1px solid #d7d7d7;
    position:relative;
    z-index:2;
}
nav.nav ul{
    height:88px;
    overflow-y: hidden;
    background-color:#fff;
    padding-right:116px;
}
nav.nav li{
    display: inline-block;
}
nav.nav li a{
    padding:0 18px;
    font-size:30px;
    height:88px;
    line-height:88px;
    display:block;
    padding-top:10px;
}
nav.nav li a i{
    height:60px;
    line-height:60px;
    display:block;
}
nav.nav li a.current{
    color:#801fa0;
}
nav.nav li a.current i{
    border-bottom:2px solid #801fa0;
}
nav.nav .fold-u{
    width:116px;
    height:88px;
    background:url(http://imgcms.tepin.hk/cmsres/20160808/c90e7973-1ee8-420c-8ea5-60e9ac337b60.png) center 39px no-repeat;
    position:absolute;
    right:0;
    top:0;
}
nav.nav .fold-u.fold-d{
    background:url(http://imgcms.tepin.hk/cmsres/20160808/c90e7973-1ee8-420c-8ea5-60e9ac337b60.png) center -48px no-repeat;
}